Q43.
Which of the following statements with regard to stealth technology is/are correct ? Stealth objects have a very small radar cross-section and are coated with Radar Absorbing Material. 2. Stealth objects can be detected using specific frequencies. 3. Stealth objects are coated with metamaterials to increase the scattering of electromagnetic radiation. Select the answer using the code given below :
Answer
C
Explanation
Stealth technology reduces radar cross-section through aircraft shaping and radar-absorbing materials. Stealth is not invisibility: detection can still be possible, including with radar frequencies for which the object's shaping/material optimisation is less effective. Metamaterials are not simply used to increase scattering. Hence 1 and 2.